Truck loading mechanism



Aug. 25, 1931. F. w. CALDWELL TRUCK LOADING MECHANISM Filed Dec. 27, 1928 '2 Sheets-Sheet 1 INVENTOR fiedamr/f Mfa alrafl ATTORNE Aug. 25, 1931. F. w. CALDWELL 1,320,526

TRUCK LOADING MECHANISM W WW - rial to be '35 truck can be obtained. i u

' r I the invention will ap-' 7 pear frorn the following specification-takenin connectionwith thedr awingslwhieh form ,4 part of this a"p1icati0n, and in which 30' 1 Fig. 1 is a si e 'eleization ofa truck having loading mechanism constructed inraccorde Patented Aug. 25, 1931 TRUCK 1405mm] MECH'AI'TIBM:

" s ew m w e ,ma-j ea e es This, invention relates to 'niechani'srn for '1 loading trucks. 1

At the present time is the usual practice in loading trucks to inanuallyfiift the ina'te-' loaded into the truck; For instance, the'loading of ashes o-r'jgarbage "requires two men on th'e groundto lift the cans or receptacles and at least one lIlflDOn't-he truck to receive and empty or du npthe cans.

w Also, the loading of dirt,isnow or'o'ther' material requires the lifting and throwing of the material into the trucki Such loading is time consumingv and laborious and during such loading operations the truck, is inactive '15 This invention hasforits salient ob1ecttol fa cilitate the loading of "trucks and to cut down the labor andtime' r'equiredifor this i p p v r bod 20 for receivlngmatei al, such as ashes;

' operation. Another object ofthe invention is' topro- 2o vide simple and] practical 'powerloperated truck loading' mechanism;

' i 7 Another object of the invent'ion-isto pro-1 vide truck loadingmechanisin so Constructed nd arranged that the maximu servi 'pi a Further objects of Z ance with the invention a F'gQ-Q'isa'sectional elevation: sube stantially on line 2;'2.of-Fig. 1

Fig'.- 31s a sectional elevation taken substantially on line'3-i-3 of Fig-12; Fig. lis a detail sectional elevation show ing the power shaft andgear drivenlthere- -by;and

f 40 v I Fig. 5' is a top plan View taken in the direcv- .tion indic ated bythe line 5 -5r0f"Fig..2, v The invention briefly described consists of 1 loading mechanism for trueks,-cornprisinga v receptacle of suitable si-zeand Shape adapted 45, to receive material .to be loaded andiipower v connections 'betweenfthe r efceptacle' and a power'sh afton the truck Whereby'therecep l m ca 'rii edm we an wi' liililmp? or discharge the -rnaterial' therein into the. w truck. The inventionfurther includes auto-f;

lifted for the purpose of dumping the con- "tents thereof froin therear end. p 1' f 7 V AU-shaped frame'25 "is secured in any portion of the truck flame.

matically operablemea'ns I Will be disconnected Whenthe receptacle 7 reaches dumping or discharging positionand there is shown a truck 10 whichniay be of""60 any suitable form or shape; }"The truck-has a fra me 11 and is equipped'with a suitable power unit, such as an internal combustion engine. A sihaft15 is drivenfby the power 7 {unit and has mounted on its rearend, a gear* '16 Whichmeshes with gears 17 and 18; u

The truck frame has mounted thereon a rub ish, garbage, dirt, or. any dtherlinaterial The body has depending frorn'. its reariend 9 a or brackets 21.;which areapitoted on stub shafts 'or pins 22', and the body'is mounted v in such a' manner that the front end be suitable inanner to the body adjacentfthe .front end: thereof and a imnarrmme is secured to the body adjacent'the thereof. The frarnes may beofany v I eon'struc'tionandg in theffornriio'iithe' inven- 7 tion l illu'strated; each jfrarneiis idrm atf v channeliron; the flanges or channeIsf 'iacing Each oi" the frames 25 has hingedthereto", H

a e f we d the eo a h nn at extension "Thefextensions are aifso formed. of 'jchanneli .iron and when swung downwardlyto the positions shown injfFig.

the .e'Xten'sions are disposed in alinernent'.

and 31 secured atone; endto thefezrtension and detachably engaging at the opposit'eend;

whereb thpow H ineans is provided for tilting:thereceptaclej a p i esiredi Y it with tli e ip'lane of the Uj-shaped franiel Each 7 extension-is held in place'bytbra'c e rods j and to permit the: ma imum service 1wbel 5, a

. sets can be alined with tracks or guide'rails the bottom thereof to facilitate the moving of the receptacle and also has a set of rollers 39 and 40 mounted on one side wall thereof, the two sets of rollers 39 and 40 being suitably spaced so that the rollers of the two Each receptacle also has mounted at the top of the opposite side wall and adjacent the ends thereof, a roller 45.

.In order to prevent the truck body from:

v tilting when a receptacle is being raised or lifted todumping position, a ack J is pivotally mounted at 46 beneath the truck body and is adapted to swing downwardly to the position shown in Fig. 1, in which position the lower end of the jack will contact with the ground. The jack can be held in inoperative position by means of a strap or loop 47 when no loading is taking place. Straps or loops 48 are also provided for holding the hinged extensions 27 in inoperative position during transportation of the truck and when the truck is not being loaded.

In the form of the invention illustrated,-

flexible connections are provided betweenthe receptacles and the hoisting mechanism.

The driving connections and operating mechanism for the hoisting devices are constructed @140 i front wall of the truck body 20 and has mounted therein a pair ofshafts 51 and 52.

as follows: A frame 50 is secured to the Each shaft has rotatably mounted thereon a drum 53 and a ratchet wheel 54 is carried by each drum.

Each shaft 51 or 52 has also rotatably and p i slidably mounted thereon a clutch member 55 p the two gears 60 are adapted to mesh with the gears 17 and 18, which in turn are driven by the gear 16 carried by the power shaft 15.

adapted to coact with a clutch member; 56 carried by the drum 53. Each of the clutch members has secured thereto a gear 60 and This construction is clearly shown in Fig. 2.

by a shift lever. 61 and by means of this lever can be moved into and out of cooperative en gagement with its coacting clutch member carried by the drum-53 Each of theratchet wheels 54 is engaged.

70. Each of the cables is led. upwardly and is secured to a drum 71 secured to a shaft Each of the clutch members 55 is controlled carried by the U-shaped frames 25 at the upper ends thereof.

Each shaft 80 has also secured thereto a drum 81 and to each drum there is secured a cable 82. The cables 82 are led downwardiy over rollers 83 mounted at the ends of the upper side edges of the truck body 20 and are secured at their lower ends to eyes 85 mounted on the upper end edges of the re ceptacle 35.

lfirom the showing in Fig. 1 it will be seen that a drum 81 is secured to each shaft 80 adjacent'eacli end thereof, there being two cables 82 connected to each receptacle for lifting the receptacle.

Each shaft 80 has also secured thereto a brake drum 88. A brake band 89 extends around each of thebrake drums 88, one end of eachbrakeband being fixed as shown at 90, and the other end of each brake band being connected to a cable 91. Each cable 91 is connected at its opposite end to a lever 92 mounted on a fixed pivot 93. The other end of each lever is connected by a flexible connection 94 to the pawl 65.

Thebrake bands 89 are provided for easing or controlling the downward movements of thereceptacles and it will be evident from the foregoing description that as one of the level-s92 'is swung in a clockwise direction, viewing Fig. 2, the'pawl controlled thereby will be released and-the rotation oftlie drum engaged by the brake band will be retarded.

Means provided for automaticallythrowing out' the clutch 55, 56'when the receptacle controlled thereby ha's been elevated to dump ing position. This accomplished by means of a lever positioned to be engaged by the upper edge of the receptacle or by the roller 45 adjacent one end of the receptacle, Each lever 100 is niounted'on afixed pivot 101 formed on a plate 102 carried by the upper end of the front U-shap'ed frame mem ber25. The outer arm 105 of the lever is dispose'din position to be engaged by the roll er 4 5 and the other arm 106 of the lever disposed on the opposite side of the frame member '25, as clearlyv shown in ig. 5, and is connected by a cable 108 to one of the clutch'control levers 61. The cable 108 at its g, lower end passes around anjidler pulley 110 carried by a bracket 111 which is secured to the front wall of -'the truck body 20.

they reach discharging position, each reccp tacle has a lug'115 it-each end thereof,-the lugs being formed by extensions of the stub shafts or pins for the rollers 39.: Each of the frame members 25 has an outwardly ex tending lug 11G adapted to be engaged I the lug. onshafteXtension 115 when the receptacle reaches discharging position. The

operation of the lugs llti. and 115is clearly shown in F-1g. 2, in which the left hand re loads simultaneously. The extensions 27 of ceptacle. is shown in position i dottedlines. I v Q I Operation; v

The receptacles 35 willlfirs t'be placedj 'in convenient position for receiving the mate- I rial to be loaded. When the receptacles are loaded, the truck is driven to aposition adjacent the receptacles and, if desired, two receptacles can be elevated to discharge their the frames 25 are then dropped and braced in the position shown inFig; 1 and the'jacks or. supportsJ are also dropped toa'position: in which they will brace the. truck body.'

The cables 82 are thenattached to the eyes '85 of the receptacle and the'clutch control mined discharging position, the lugs or shaft extensions 115 will engage the lugs 116. carried by the ii'rames 25 and will be tilted to the dotted line position shown in Fig. 2. When the receptacle has been tilted'asshown in Fig. 2, the rollers 45 will engage thecables 82 and will also engagejthe lever arm 105,

,thus causing the flexible connection 108 to shift the clutch lever 61 and throw out the clutch. 'The. engagementof thecab'les 82 by the racket 54. I I

the rollers 45 will, by reason of the elasticity.

of the cables, cause theflreceptacle to, tilt backwardly away fromthecables to a suifi cient-extent to permit the receptacle to be lowered when the pawl 65is released from" In order to lower therece'ptacle, the'lever 92 is actuated to releasethe pawl 66 and simultaneously' throw on'the brake, thus controlling by means of the brake band, the

V downward movement ofthe receptacle. M

It will be seen from the showing in Fig. 2

that theclutch control. levers andbrake con- I trol levers of the mechanisms forthe two sides ofthe truck canbe manipul'ated simulventionis capable of modification and that changes in theconstruction and in the arrangementof the Various cooperating parts I What 1- claim is;

framework including a set: of guide rails "mounted on each side of the truck, a recepta- "cleindependent ofthe truck and having rollers on one upstanding side, spaced to engage the desired set ofj-rails, drums operatively connected to be driven by said shaft, cables I connected to said drums and adaptedfor con- 5 I vnectiont'o said receptacle, coac-ting means ou I the rails and receptacle for tilting the reception, andmeans located on saidreceptacle to,

engage said cables when the receptacle is I may be made without departing from the spirit or scope of theinvention,

I asexpres'sed I i in the following claims. I 1, e I

. 'zof i 1. Truck loading mechanism comprising a V truck, a power shaft thereon, adetachable taclewhen it reaches a predetermined posi- I tilted, thereby to utilize the elasticity of thecables to return the. receptacle from its tilted position. w 1 y 2. Truck loadingmechanism-comprising a truck, a detachable frameworkincludingsets of guiderails at eachside ofthe truck, said 5 rails having foldable extensionsat the lower I v ends thereof, a plurality otreceptacle's mov-- I able to and'from said truck, each having roll-- I ers on one side spaced'to engage its respective 1 rail extensions, a power shaft on the' truck,

drums 'operatively connected tobe driven by and adapted for connection to said receptacles ,-each of sa d receptacles having a roller positioned to engage itsnrespective cable 7 i when the receptacle is in dumping position, thereby to utilize the elasticity of the cables to return the receptacle back tolowering .po-

sition.

FREDERICK A W I taneously by a single operator-and,therefore, v

two receptacles can be simultaneously dis charged and returned tion.

clear that simple andpractical truckloading mechanism has beenidesigned and" that by J the use of such mechanismlthe cost'of loading I trucks can .be materially. reduced and-the service obtained from truck can be very materially increased.

Although onespeclfic embodiment of the invention has been; particularlyshown and described, it will be understood thatthe'into loadreceiving posi- F rom the foregoing description itiwill be i i said shaft and cables connected to said drums V I i/ Y I 

